A large blue-faced man in the audience of my SF Themes in Rock panel mentioned that there’s a death metal band called Stovokor that sings in Klingon (and dresses up as Klingons *are actually Klingons*). Their name, Stovokor, comes from the Klingon idea of an afterlife, which seems to resemble the Viking Valhalla (i.e., your station in the afterlife is in large part determined by how great a warrior you were).